Instruction
Pump instruction PAHT C 2-6.3
40
180R9316 | AQ176586503002en-000501 | IOM PAHT C 2-6.3 pumps | 01.2022
7.1 General information
This guideline provides information on the
recommended service intervals for the PAHT C
pumps . The recommendation is based upon
good engineering practice and on experience
gained from operation even under extreme
conditions .
The recommendation is for guidance only .
7.2 Inspection of pump parts
Danfoss recommends to inspect the pumps after
8,000 hours (validated in water) . Typical signs of
wear are seen on the contact/sliding surfaces in
the pumps . If the pumps must run for additional
8,000 hours, the following parts will have to be
inspected:
•
Pistons
•
Retainer plate, ball and bearing
•
Valve plate
•
Port plate
•
Sealings
If there are any wear marks on the parts they
need to be replaced .
If service inspection due to the application is
complicated, the plant operator can decide to
extend the service interval by evaluating the
following deviations:
•
Sound - does the pump have any unusual
sounds?
•
Electric motor power consumption and
speed compared with measurement made
in the past .
•
Pressure/flow according to measurements
made in the past?
We advise that the above mentioned parameter
during the extended service interval is inspected
for every 500-2,000 hours beyond the 8,000
hours . The pump must in any case be inspected
after maximum 16,000 hours or 2 years .
7.3 How to inspect the pump
Service manuals are available on the internet
hpp .danfoss .com
7.
Recommended service
intervals
Summary of Contents for PAHT C
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